Guitar tuner



FIG. 1 is a perspective view of a guitar tuner showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image of the left side elevational view;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The portions of the article in broken lines are shown to illustrate the environment only and form no part of the claimed design. 

The ornamental design for guitar tuner, as shown and described. 